Mode Of Operation Pulsegen - Siemens SIMATIC S7-1200 Function Manual

Instructions
9.4 PID basic functions
9.4.3.3

Mode of operation PULSEGEN

Modes
Depending on the parameters assigned to the pulse shaper, PID controllers with a three-step
output or with a bipolar or unipolar two-step output can be configured. The following table
illustrates the setting of the switch combinations for the possible modes.
Mode
Three-step control
Two-step control with bi-polar
Manipulating range (-100 % to 100 %)
Two-step control with unipolar
Manipulating range (0 % to 100 %)
Manual mode
Manual mode in two/three-step control
In the manual mode (MAN_ON = TRUE), the binary outputs of the three-step or two-step
controller can be set using the signals POS_P_ON and NEG_P_ON regardless of INV.
Control
Three-step control
Two-step control
464
POS_P_ON NEG_P_ON
FALSE FALSE
TRUE FALSE
FALSE TRUE
TRUE TRUE
FALSE Any
TRUE Any
MAN_ON STEP3_ON
FALSE TRUE
FALSE FALSE
FALSE FALSE
TRUE Any
QPOS_P
FALSE
TRUE
FALSE
FALSE
FALSE
TRUE
Function Manual, 03/2017, A5E35300227-AC
ST2BI_ON
Any
TRUE
FALSE
Any
QNEG_P
FALSE
FALSE
TRUE
FALSE
TRUE
FALSE
PID control